Provided by: whois_5.2.11_amd64 bug


       whois - client for the whois directory service


       whois  [  {  -h  |  --host  }  HOST  ]  [  {  -p  |  --port  } PORT ] [ -abBcdGHKlLmMrRx ]
       [  -g  SOURCE:FIRST-LAST  ]  [   -i   ATTR[,ATTR]...   ]   [   -s   SOURCE[,SOURCE]...   ]
       [ -T TYPE[,TYPE]... ] [ --verbose ] OBJECT

       whois -q KEYWORD

       whois -t TYPE

       whois -v TYPE

       whois --help

       whois --version


       whois searches for an object in a RFC 3912 database.

       This  version of the whois client tries to guess the right server to ask for the specified
       object. If no guess can be made it will  connect  to  for  NIC
       handles or for IPv4 addresses and network names.


       -h HOST, --host HOST
               Connect to HOST.

       -H      Do not display the legal disclaimers some registries like to show you.

       -p, --port PORT
               Connect to PORT.

               Be verbose.

       --help  Display online help.

               Display client version information.

       Other options are flags understood by and some other RIPE-like servers:

       -a      Also search all the mirrored databases.

       -b      Return brief IP address ranges with abuse contact.

       -B      Disable object filtering. (Show the e-mail addresses.)

       -c      Return the smallest IP address range with a reference to an irt object.

       -d      Return the reverse DNS delegation object too.

               Search  updates  from SOURCE database between FIRST and LAST update serial number.
               It's useful to obtain Near Real Time Mirroring stream.

       -G      Disable grouping of associated objects.

       -i ATTR[,ATTR]...
               Search objects having associated attributes. ATTR is  attribute  name.   Attribute
               value is positional OBJECT argument.

       -K      Return  primary  key attributes only. Exception is members attribute of set object
               which is always  returned.  Another  exceptions  are  all  attributes  of  objects
               organisation, person, and role that are never returned.

       -l      Return the one level less specific object.

       -L      Return all levels of less specific objects.

       -m      Return all one level more specific objects.

       -M      Return all levels of more specific objects.

       -q KEYWORD
               Return  list  of  keywords  supported by server. KEYWORD can be version for server
               version, sources for list of source databases, or types for object types.

       -r      Disable recursive look-up for contact information.

       -R      Disable following referrals and force showing the object from the  local  copy  in
               the server.

       -s SOURCE[,SOURCE]...
               Request  the  server  to  search  for  objects mirrored from SOURCES.  Sources are
               delimited by comma and the order is significant.  Use -q sources option to  obtain
               list of valid sources.

       -t TYPE Return the template for a object of TYPE.

       -T TYPE[,TYPE]...
               Restrict the search to objects of TYPE. Multiple types are separated by a comma.

       -v TYPE Return the verbose template for a object of TYPE.

       -x      Search for only exact match on network address prefix.


       Please remember that by default will only search in the domains
       database. If you want to search for NIC handles you have to prepend a  !  character.  When
       you do this, the default server becomes

       When  querying  for IPv4 or IPv6 networks, the CIDR netmask length will be
       automatically removed from the query string.

       When querying for AS numbers, the program will automatically  convert  the
       request in the appropriate format, inserting a space after the string AS.

       When  querying for domain names and no other flags have been specified, the
       program will automatically add the flag -T dn.

       When querying for  domain  names  and  no  other  flags  have  been
       specified, the program will automatically add the flag --show-handles.

       RIPE-specific command line options are ignored when querying non-RIPE servers. This may or
       may not be the behaviour intended by the  user.   When  querying  a  non-standard  server,
       command  line  options  which are not to be interpreted by the client should always follow
       the -- separator (which marks the beginning of the query string).

       If the /etc/whois.conf configuration file exists, it will be consulted to  find  a  server
       before  applying  the  normal  rules.  Each  line  of  the  file  should contain a regular
       expression to be matched against the query text and the whois server to use, separated  by
       white space.  IDN domains must use the ACE format.

       The whois protocol does not specify an encoding for characters which cannot be represented
       by ASCII and implementations vary wildly.  If the program knows  that  a  specific  server
       uses  a  certain  encoding,  if needed it will transcode the server output to the encoding
       specified by the current system locale.

       Command line arguments will always be interpreted accordingly to the current system locale
       and converted to the IDN ASCII Compatible Encoding.




       LANG   When  querying  and English text is requested unless
              the LANG or LC_MESSAGES environment variables specify a Japanese locale.

              A list of options which will be evaluated before the ones specified on the  command

              This  server will be queried if the program cannot guess where some kind of objects
              are located. If the variable does not exist then will be queried.



       RFC 3912: WHOIS Protocol Specification

       RIPE      Database      Query      Reference      Manual:       <


       The  program  may  have  buffer  overflows in the command line parser: be sure to not pass
       untrusted data to it.  It should be rewritten to use a dynamics strings library.


       This program closely tracks the user interface of the whois client developed  at  RIPE  by
       Ambrose Magee and others on the base of the original BSD client.  I also added support for
       the protocol extensions developed by David Kessens of QWest for the 6bone server.


       Whois and this man page were written by Marco d'Itri <> and are licensed  under
       the terms of the GNU General Public License, version 2 or higher.